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Chart 1 (Top left): This pie chart shows the proportion of shooting incidents by gender. We can find that male is 95.5% and female is 4.5%.

Chart 2 (Top right): This pie chart presents the proportion of shooting incidents by race. We can find that half of people are White, more than Black.

Chart 3 (Bottom left): This graph shows the distribution of age for different races. White has highest average age, and also has youngest and oldest people.

Chart 4 (Bottom right): This graph presents the top 10 amount of shooting incidents states, they rank in decreasing order. California, Taxes and Florida are three highest states.

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From this map chart, we can notify that California has the most amount of shooting incidents. Taxes and Florida are following. It is necessary to consider state social circumstance and legalization of guns. Dangerous area more located at south.

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Chart 1 (Left): From the network between states and race, we can see different states have different race distribution. California has most Hispanic while Florida has least Hispanic.

Chart 2 (Right): From the network between states and arms category, we can find that the guns is biggest category for shooting incidents. And arms categories for different states are similar.

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From this chart, we can find that incidents happened randomly through different months. The average amount of shooting incidents is 80. There was a very low point at 07/2015, it was related to society circumstance.

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From the wordcloud, we can find that Los Angles is the city with most shooting incidents; Phoenix and houston are the next. We also can find that these top cities are big cities with more populations, so that have more shooting incidents.